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Calculation of Earnings Per Share - Additional Information (Details) | 3 Months Ended | 6 Months Ended
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Dec. 01, 2018 shares | Dec. 01, 2018 Number shares
Schedule Of Earning Per Share [Line Items] |  |
Limit of cash dividends Class B common stock (percent) |  | 90.00%
Common stock options anti-dilutive | 117,000 |
Common Stock |  |
Schedule Of Earning Per Share [Line Items] |  |
Common stock shares, authorized | 17,000,000 | 17,000,000
Common Class B |  |
Schedule Of Earning Per Share [Line Items] |  |
Common stock shares, authorized | 3,000,000 | 3,000,000
Number of votes per share | Number |  | 10

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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